1. Letter from Francis Crick to Ernst Mayr Creator: Crick, Francis, 1916-2004 Date: 21 April 1971 Genre: Letters (correspondence)
2. Letter from Francis Crick to John T. Edsall, Fogarty International Center Creator: Crick, Francis, 1916-2004 Date: 29 March 1971 Genre: Letters (correspondence)
3. An Approach to Developmental Biology Creator: Crick, Francis, 1916-2004 Date: 23 November 1970 Genre: Lecture notes
4. Letter from Francis Crick to Lord Charles Percy Snow Creator: Crick, Francis, 1916-2004 Date: 17 April 1969 Genre: Letters (correspondence)
5. The Social Impact of Biology (Rickman Godlee Lecture) Creator: Crick, Francis, 1916-2004 Date: [24 October 1968] Genre: Lecture notes